4G

Sprint and Clearwire were first out of the gates with 4G products that use WiMax technology. But Verizon Wireless has big plans for Long Term Evolution, which promises to deliver faster mobile broadband. Wireless carriers are either deploying LTE or planning pilots in the months ahead. If 4G lives up to the hype, it may allow broadband customers to cut the cords for 4G.

Singtel says it will work with the telecoms equipment maker to identify possible applications of 5G networks for consumers and businesses, including trials for potential technologies on the mobile network.

4G is finally here, but how good is it? And does it vary depending on where exactly you are? I took to the London Underground to map out some average download and upload speeds around London, to see how EE's 4G fares.

After a long wait, 4G is finally around the corner in the UK — but it's hard to find handsets that use the UK's particular LTE spectrum. Here's a bunch you can buy to be ready for T-Mobile and Orange's 1800MHz switch-on.